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$40+ Cheap flights from Ontario (ONT) to Mexico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MEX
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
1 adult, Economy
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Cheap flight deals from Ontario to Mexico

Keep the following information in mind while searching for Ontario to Mexico flight deals. Data was last updated octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$174
(Mytrip)

One-way from

$40
(Mytrip)

Popular in

December

Cheapest in

March

Average price

$385

Good round-trip deal

$180 or less

Good one-way deal

$55 or less
Provider with most accurate pricing for Los Angeles-Mexico City Benito Juarez flight deals.
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From Ontario to Mexico
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One-way flight from Ontario to Mexico
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Highest demand for flights based on searches. 11% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Ontario to Mexico.
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Price to beat on a one-way flight from Ontario to Mexico.
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Find flight deals from Ontario to Mexico

Cheapest flights from Ontario to Mexico
Explore the most affordable flight options available from Ontario to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 14, 2025.

This Mytrip deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/1312:40 pmONT - SJD
Nonstop2h 24mVolaris
jue. 10/163:54 pmSJD - ONT
Nonstop2h 25mVolaris
Deal found 10/12$172
This Mytrip deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/912:50 pmONT - SJD
Nonstop2h 22mVolaris
mié. 11/125:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 10/13$174
This CheapOair deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/312:50 pmONT - SJD
Nonstop2h 22mVolaris
jue. 11/65:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 10/11$178
This CheapOair deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2512:40 pmONT - SJD
Nonstop2h 24mVolaris
sáb. 11/13:54 pmSJD - ONT
Nonstop2h 25mVolaris
Deal found 10/13$214
This CheapOair deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1912:40 pmONT - SJD
Nonstop2h 24mVolaris
vie. 10/243:54 pmSJD - ONT
Nonstop2h 25mVolaris
Deal found 10/14$220
This CheapOair deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1812:40 pmONT - SJD
Nonstop2h 24mVolaris
sáb. 10/2511:55 amSJD - ONT
1 stop11h 55mVolaris
Deal found 10/12$230
This CheapOair deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/312:50 pmONT - SJD
Nonstop2h 22mVolaris
sáb. 11/83:36 pmSJD - ONT
1 stop8h 16mVolaris
Deal found 10/12$238
This CheapOair deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/312:42 amONT - SJD
1 stop9h 48mVolaris
sáb. 11/85:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 10/12$244
This CheapOair deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2412:50 pmONT - SJD
Nonstop2h 22mVolaris
mar. 12/3012:11 pmSJD - ONT
1 stop9h 00mVolaris
Deal found 10/12$255
This CheapOair deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/2912:50 pmONT - SJD
Nonstop2h 22mVolaris
mié. 12/33:36 pmSJD - ONT
1 stop8h 16mVolaris
Deal found 10/13$257
This CheapOair deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/512:50 pmONT - SJD
Nonstop2h 22mVolaris
lun. 12/85:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 10/12$263
This CheapOair deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1112:50 pmONT - SJD
Nonstop2h 22mVolaris
dom. 12/145:06 pmSJD - ONT
Nonstop2h 38mVolaris
Deal found 10/12$266

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Mexico that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 14, 2025.
Use the filters below to find and compare flights from Ontario to Mexico that are best for you.

Fly from

Ontario

Fly to

Mexico

Route

Depart

Return

Price

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

sáb. 11/29

12:50 pm-4:12 pm

Nonstop2h 22m

San José del Cabo Los Cabos

mié. 12/3

3:36 pm-10:52 pm

1 stop8h 16m

$257

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

jue. 1/1

12:50 pm-4:12 pm

Nonstop2h 22m

San José del Cabo Los Cabos

lun. 1/12

5:06 pm-6:44 pm

Nonstop2h 38m

$318

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

dom. 11/9

12:50 pm-4:12 pm

Nonstop2h 22m

San José del Cabo Los Cabos

mar. 11/11

5:06 pm-6:44 pm

Nonstop2h 38m

$346

OntarioCancún

ONT - CUN

ONTCUN

Ontario

dom. 12/7

7:05 am-9:20 pm

1 stop11h 15m

Cancun

vie. 12/12

11:56 am-11:04 pm

1 stop14h 08m

$356

OntarioCancún

ONT - CUN

ONTCUN

Ontario

lun. 12/8

10:25 pm-10:55 am

1 stop9h 30m

Cancun

vie. 12/12

11:56 am-11:04 pm

1 stop14h 08m

$356

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

dom. 11/23

12:42 am-10:35 am

1 stop7h 53m

Oaxaca Xoxocotlan

lun. 12/1

4:52 pm-10:52 pm

1 stop8h 00m

$377

OntarioPuerto Vallarta

ONT - PVR

ONTPVR

Ontario

jue. 11/27

12:42 am-5:10 pm

2 stops14h 28m

Puerto Vallarta Ordaz

mié. 12/3

2:39 pm-10:52 pm

1 stop10h 13m

$383

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

lun. 11/10

6:00 am-12:35 pm

1 stop5h 35m

San José del Cabo Los Cabos

jue. 11/13

1:40 pm-11:52 pm

1 stop11h 12m

$390

OntarioSan José del Cabo

ONT - SJD

ONTSJD

Ontario

mié. 11/12

6:00 am-12:35 pm

1 stop5h 35m

San José del Cabo Los Cabos

mié. 11/19

9:42 am-11:52 pm

2 stops15h 10m

$390

OntarioOaxaca

ONT - OAX

ONTOAX

Ontario

sáb. 12/13

11:34 pm-10:35 am

1 stop9h 01m

Oaxaca Xoxocotlan

mar. 12/23

4:52 pm-10:52 pm

1 stop8h 00m

$390

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Mexico

Have a flexible travel schedule? Discover the best time to fly to Mexico from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Mexico

What is the cheapest month to book a flight from Ontario to Mexico?

Currently, December is the cheapest month in which you can book a flight from Ontario to Mexico (average of $39). Flying from Ontario to Mexico in June is currently the most expensive (average of $138). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to MX?

Find hourly flight availability from Ontario to Mexico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 14, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 20% on flights from Ontario to Mexico by exploring options for tickets in the evening.

What is the cheapest day to fly from Ontario to Mexico?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Mexico. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Mexico flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Mexico

Get insights into the airlines that provide service to Mexico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Mexico. Reviews last updated octubre 14, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Ontario to Mexico by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,235 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,975 reviews
Southwest
8.0
Very good
4,235 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,039 reviews
Southwest
8.0
Very good
4,235 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Volaris
6.7
Okay
1,150 reviews
Southwest
8.0
Very good
4,235 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,137 reviews
Southwest
8.0
Very good
4,235 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Mexico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Mexico?

    For a flight from Ontario to Mexico, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from Ontario to Mexico?

    There are many flights that can get you from Ontario to Mexico in 2h 22m. Fly via Volaris, Aeromexico, or Delta to get the fastest option. The distance from Ontario to Mexico is about 891 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Ontario to Mexico?

    Most travelers choose Ontario - Mexico City Benito Juarez, Ontario - Guadalajara Miguel Hidal or Ontario - Cancun when deciding on the best route from Ontario to Mexico.

  • Can I find deals for flights from Ontario to Mexico that include hotel bookings?

    Yes. In addition to deals on Ontario to Mexico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Mexico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Mexico.

  • Can I find deals for business class flights from Ontario to Mexico?

    Yes. Cheapflights offers flight deals from Ontario to Mexico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Mexico?

    Currently, December is the cheapest month in which you can book a flight from Ontario to Mexico (average of $39). Flying from Ontario to Mexico in June is currently the most expensive (average of $138). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to Mexico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Ontario to Mexico

Discover the top 8 airlines that operate flights from Ontario to Mexico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$153Average$353FlexibilityNo cancel feeOn-time79%
FrontierCheapest$162Average$398FlexibilityNo cancel feeOn-time62%
VivaCheapest$211Average$290FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$484FlexibilityNo cancel feeOn-time75%
DeltaCheapest$263Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$310Average$510FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$312Average$583FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$313Average$596FlexibilityNo cancel feeOn-time71%

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